A/C System Performance
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Mazda B4000, 2001 Mazda B3000, 2001 Mazda B2500, 2000 Mazda B4000, and 2000 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
- Park vehicle out of direct sunlight. Connect A/C manifold gauge set. Start engine and allow it to reach normal operating temperature. Increase engine speed to 1500 RPM. Set A/C controls for MAX A/C, panel vent outlet mode, and full cold settings.
- Set blower switch on maximum speed. Set air selector to recirculation setting. Close all doors and windows. Insert thermometer in center vent. Operate system for 10-15 minutes to allow system to stabilize. Measure center vent output temperature. See A/C SYSTEM PERFORMANCE SPECIFICATIONS table.
- Temperature should be 35-50°F (1.7-10.0°C) at center vent with high-side and low-side pressures within specification. See A/C SYSTEM HIGH-SIDE PRESSURE SPECIFICATIONS table. Low-side pressure should remain constant at 25-45 psi (1.8-3.2 kg/cm2 ) throughout normal operating range.
A/C SYSTEM PERFORMANCE SPECIFICATIONS
| Ambient Temperature - °F (°C) | Outlet Air Temperature - °F (°C) |
|---|---|
| 60 (16) | 34-47 (1.1-8.3) |
| 70 (21) | 34-47 (1.1-8.3) |
| 80 (27) | 34-47 (1.1-8.3) |
| 90 (32) | 34-47 (1.1-8.3) |
| 100 (38) | 41-52 (5.0-11.1) |
A/C SYSTEM HIGH-SIDE PRESSURE SPECIFICATIONS
| Ambient Temperature - °F (°C) | Discharge Pressure - psi (kg/cm2 ) |
|---|---|
| 60 (16) | 75-175 (5.3-12.3) |
| 70 (21) | 100-200 (7.0-14.0) |
| 80 (27) | 125-230 (8.8-16.2) |
| 90 (32) | 150-260 (10.5-18.3) |
| 100 (38) | 180-320 (12.7-22.5) |